Tunneling anomaly of superconducting films in strong magnetic fields

Abstract

We consider the tunneling Density of States (DoS) of superconducting films driven to the paramagnetic phase by the Zeeman splitting. We show that there is minimum in the DoS whose position depends on the orientation of the applied field. This dependence, not predicted by previous theoretical calculations, is in agreement with a recent experiment.

5 pages, 2 figures; to be published in Phys. Rev. B